It has been reported that the family will be moving to the UK for two years.

After seven years and six children, Brad Pitt and Angelina Jolie are finally engaged. The duo, who recently announced their engagement, will be moving to Richmond, Surrey with their six children where Jolie will work on three projects back-to-back. Source..Brangelina moving to the UK

The engagement ring was designed by Robert Procop, a private jeweller for the couple, in collaboration with Brad Pitt.

Procop said: 'Brad had a specific vision for this ring, which he realised over a yearlong collaboration. He wanted every aspect of it to be perfect, so I was able to locate a diamond of the finest quality and cut it to an exact custom size and shape to suite Angelina's hand.

'The side diamonds are specially cut to encirlce her finger. Each diamond is of the highest gem quality.'

Experts estimate the ring cost around $250,000.

And Brad's spokeswoman Cynthia Pett-Dante later confirmed the news, saying: 'It is a promise for the future and their kids are very happy. There's no date set at this time.'

Back in 1999, Brad gave Jennifer Aniston a diamond and platinum engagement ring. The actor is believed to have co-designed it with jeweler Silvia Damiani, with an estimated value of $500,000. The couple divorced in 2005.